John w



(No Model.)

J. WELEDYARD.

DEVICE FOR CONVERTING MOTION.

No. 364,828. Patented June 14, 1887.

INVENTOR 290/) WITNESSES BY E ATTORNEYS.

UNITED STATES PATENT OFFICE.

JOHN W. LEDYARD, OF NEW YORK, N. Y.

DEVICE FOR CONVERTING MOTION.

SPECIFICATION forming part of Letters Patent No. 364,828, dated June 14-, 1887. V

Application filed July 12, 1886. Serial No. 207,782. (No model.)

drawings, forming a part of this specification,

in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a side elevation of myimproved mechanical movement. Fig. 2 is a sectional I elevation of the same.

The object of this invention is-to providemechanical movements for converting reciprocating rectilinear motion into continuous rotary motion, by the use of which more power can be obtained with the same length of stroke, and the dead-centers can be more easily and smoothly passed than when a crank is used in the ordinary manner.

The invention consists in the construction and combination of various parts of the mechanical movement, as will be hereinafter fully described and then claimed.

A represents the frame of the movement in bearings in which a shaft, 13, revolves. To the shaft B an eccentric, D, is secured, which revolves within the eye of the strap K. The lower end of the strap K is pivotally connected at k to a reciprocating cross-head, G, which slides in ways H on the frame A. The crosshead is reciprocated by means of the pistonrod I, working in the steam-cylinder J. It will be seen,therefore, that the reciprocating movement of the crosshead will cause the strap K to continuously rotate. the eccentric and the shaft to which the same is secured.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- The combination, with the cross-head G, ways H H, and shaft B, having attached eccentric D, of the connecting eccentricstrap K, pivoted to said cross-head, substantially as herein shown and described, whereby a reciprocating rectilinear movement applied to the said cross-head will give a continuous rotary movement to the said shaft, as set forth.

JOHN W. LEDYARD. 

